Serum cholinesterase (ChE) is synthesized by hepatic parenchymal cells and is released into blood immediately after synthesis,and therefore,serum ChE can be used as an objective and sensitive indicator of liver function.Serum ChE has been used as an independent factor for the evaluation of liver function for a long time and can reflect the synthetic function of the liver and help to determine the severity of liver diseases.Combined measurement of serum ChE and serum prealbumin,total cholesterol,total bile acid,and prothrombin time has an important value in the diagnosis and treatment of liver diseases.At the same time,serum ChE combined with Child-Turcotte-Pugh score or MELD score can accurately evaluate liver reserve function,which may help with the prognostic evaluation of patients with liver diseases.